\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Implied impact of compositional shifts on job insecurity, US 2000-2016}
\begin{tabular}{l*{3}{c}}
\toprule
            &\multicolumn{1}{c}{Change in proportion}&\multicolumn{1}{c}{AME}&\multicolumn{1}{c}{\specialcell{Implied change in\\ aggregate insecurity}}\\
            &            &            &            \\
\midrule
Self-employed worker&      -.0044&      -.0488&     .000215\\
Immigrant worker&        .014&       .0597&     .000835\\
Non-white worker&        .055&       .0652&      .00358\\
Part-time worker&       .0405&       .0677&      .00274\\
Tertiary degree&       .0546&      -.0719&     -.00393\\
Union active at workplace&       -.042&       .0327&     -.00137\\
Male        &        -.02&       .0179&    -.000357\\
\bottomrule
\end{tabular}
\end{table}
